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Desserts · Part 3 of 3: Tips & recipe card

Crockpot Biscoff Cinnamon Roll Casserole Tips, FAQ & printable recipe

A close-up view of the Biscoff cinnamon roll casserole in a ceramic slow cooker with steam rising.
Prep
Cook
Total
Serves
8

Tips for success

For the best texture, use room-temperature eggs and heavy cream. Cold ingredients can cause the custard to curdle when mixed with the melted cookie butter. If you’re short on time, warm the cream slightly before whisking.

Also, make sure your cookie butter is fully melted and smooth—lumps can create pockets of uncooked custard. Whisk vigorously to ensure a homogeneous mixture.

To get those coveted crispy edges, don’t stir the casserole during cooking. The rolls on the bottom and sides will caramelize against the pot, creating a delicious crust.

If you prefer a softer texture, you can gently fold the mixture once halfway through, but that will reduce the crunch. Serve the casserole straight from the slow cooker to keep it warm, and let it sit for 5 minutes before scooping to allow the custard to set slightly.

Variations

  • Chocolate Chip: Sprinkle 1/2 cup semisweet chocolate chips between the layers along with the crushed cookies. The chocolate melts into gooey pockets that pair beautifully with the Biscoff flavor.
  • Nutty Crunch: Add 1/2 cup chopped pecans or walnuts to the crumb layer. Toast the nuts first for extra depth. The crunch provides a nice contrast to the soft rolls.
  • Apple Cinnamon: Fold in 1 cup finely diced apple (tossed with 1 tsp cinnamon) with the cinnamon rolls. The apple softens during slow cooking and adds a fruity sweetness.
  • Salted Caramel: Swap the vanilla icing for 1/4 cup caramel sauce and sprinkle 1/2 tsp flaky sea salt over the top after adding the crushed cookies. The salt balances the sweetness.

Storage and make-ahead

Fridge
Leftovers keep in the fridge for up to 4 days. Reheat gently before serving.
Freezer
Freeze the baked casserole in an airtight container for up to 2 months. Thaw overnight in the fridge and reheat in the microwave or oven.
Reheat
Reheat individual portions in the microwave for 45 seconds, or in a 300°F (150°C) oven for 10 minutes. Add a drizzle of warm milk or cream if it seems dry.

Store any leftovers in an airtight container in the refrigerator for up to 4 days. The casserole will firm up as it cools, so reheat individual portions in the microwave for 30–45 seconds or in a 300°F (150°C) oven for 10 minutes until warmed through. The topping may lose some of its gooeyness, but the flavor will remain delicious.

You can assemble the casserole the night before and refrigerate it uncovered for up to 12 hours. When ready to cook, let it sit at room temperature for 30 minutes, then place in the slow cooker and cook on HIGH for 2 hours.

The custard will soak into the rolls overnight, resulting in an even more tender texture. Alternatively, cook the casserole fully and reheat it the next day.

Serving ideas

Serve the casserole warm, straight from the slow cooker, so the topping stays gooey and the edges remain crisp. Scoop generous portions onto dessert plates or into shallow bowls.

For an extra indulgence, add a scoop of vanilla ice cream or a dollop of whipped cream—the cold creaminess balances the warm spiced sweetness beautifully. A sprinkle of flaky sea salt on top can also enhance the caramel notes.

This dish is perfect for brunch, potlucks, or holiday mornings. It’s self-serve friendly, so set out the slow cooker with a large spoon and let guests help themselves. If you’re serving a crowd, double the recipe and use a 7-quart slow cooker. Pair it with coffee or cold milk—the cinnamon and speculoos flavors are a natural match for warm beverages.

Frequently asked questions

Can this casserole be made in the oven instead of a slow cooker?
Yes. Assemble the casserole in a 9x13-inch baking dish and bake at 350°F (175°C) for 30–35 minutes, until the center is set and the top is golden. The texture will be slightly different—more like a traditional baked French toast—but it’s just as delicious. Check for doneness by inserting a knife into the center; it should come out clean.
Why is the center still jiggly after 2 hours?
If the center is jiggly, the custard hasn’t fully set. This can happen if the slow cooker runs cool or if the lid was opened too often. Continue cooking on HIGH for another 30 minutes, checking every 15 minutes. The internal temperature should reach 160°F (71°C) to ensure the eggs are cooked through.
Can the casserole be prepared without eggs?
Eggs help the custard set and give structure. To make an egg-free version, omit the eggs and increase the heavy cream to 3/4 cup. The texture will be softer and more like a bread pudding. Cook time may be slightly shorter—check at 1 1/2 hours.
How do you keep the casserole from sticking to the slow cooker?
Grease the slow cooker generously with butter or nonstick spray before adding the ingredients. You can also line the slow cooker with parchment paper, leaving some overhang for easy lifting. Avoid using metal utensils that can scratch the ceramic insert.
Can this recipe be doubled for a larger crowd?
Yes. Double all ingredients and use a 7-quart slow cooker. Keep the same cook time, but check for doneness at 1 3/4 hours. If your slow cooker is smaller, cook in batches or reduce the recipe by a third. Leftovers can be frozen for up to 2 months.
Recipe card

Crockpot Biscoff Cinnamon Roll Casserole

Prep 10 minCook 2 hTotal 2 h 10 minServes 8
A close-up view of the Biscoff cinnamon roll casserole in a ceramic slow cooker with steam rising.

Ingredients

  • 2 cans (12.4 oz each) jumbo cinnamon rolls with icing
  • 3/4 cup Lotus Biscoff cookie butter (melted)
  • 1/2 cup heavy cream
  • 2 large eggs
  • 1/2 cup crushed Biscoff cookies (about 6 cookies)
  • Vanilla icing from cinnamon roll cans, to taste
  • 1/4 cup Lotus Biscoff cookie butter, melted
  • 2 tbsp crushed Biscoff cookies

Instructions

  1. Lightly grease the inside of a 6-quart slow cooker with butter or nonstick spray. In a small bowl, whisk together the 3/4 cup melted Biscoff cookie butter, heavy cream, and eggs until smooth and fully combined. Set aside.
  2. Open the cans of jumbo cinnamon rolls. Reserve the icing packets for later. Cut each cinnamon roll into quarters. You should have 32 pieces total if using two 8-roll cans.
  3. Place half of the quartered cinnamon roll pieces in the bottom of the slow cooker in an even layer. Drizzle with half of the Biscoff custard mixture and sprinkle with half of the crushed Biscoff cookies. Repeat with the remaining cinnamon roll pieces, custard, and crushed cookies.
  4. Cover the slow cooker with the lid and cook on HIGH for 2 hours, without opening the lid during the first 90 minutes. The rolls will puff up and absorb the custard, becoming fluffy and caramelized at the edges.
  5. Once the casserole is cooked through, drizzle the reserved vanilla icing from the cinnamon roll cans over the top. Then pour the extra 1/4 cup melted Biscoff cookie butter evenly over the surface.
  6. Sprinkle the remaining 2 tablespoons of crushed Biscoff cookies over the top. Scoop the warm casserole onto dessert plates and serve immediately.
Contains: gluten, eggs, milk, soy

Estimated nutrition per serving

Calories
580
Protein
8 g
Carbohydrates
76 g
Fat
28 g
Fiber
2 g
Sugar
38 g
Automatic estimate from the ingredient list, not laboratory-verified.
Recipe by Clara Weller (pen name) · Allquickyrecipes · https://recipes.allquickyrecipes.com/slow-cooker-biscoff-cinnamon-roll-casserole/part-3