Cheesy Marinara Crockpot Meatballs with Mozzarella Pearls Step-by-step instructions

Before you start

Before starting, ensure the meatballs are at room temperature if they were refrigerated, but if using frozen, keep them frozen until ready to use. Mince the garlic cloves and grate the Parmigiano-Reggiano. Have the marinara sauce measured and the slow cooker ready.

If the mozzarella pearls are large, you can halve them, but small pearls are perfect as is. Tear the basil leaves just before adding to keep them fresh. Set out your measuring cups and spoons to streamline the process.

Instructions

Layer and Combine

1. 1Layer the Ingredients
   Place the Italian beef and pork meatballs in the bottom of a 6-quart slow cooker in a single layer. Pour the San Marzano marinara sauce over the meatballs, ensuring they are mostly covered. Sprinkle the freshly grated Parmigiano-Reggiano, minced garlic, and crushed red pepper over the sauce. Stir gently to combine, being careful not to break the meatballs apart.
   Look for The meatballs are nestled in a rich red sauce with visible garlic and red pepper flakes.
   Tip If the meatballs are large, you can cut them in half to help them cook evenly, but whole meatballs are fine.

You'll see a colorful pot with meatballs resting in a sea of red sauce, studded with white Parmesan and green flecks of garlic and red pepper. The sauce should be evenly distributed, and the meatballs should be mostly submerged. This is the starting point; everything will meld during cooking.

Slow-Cook and Simmer

2. 2Slow-Cook on Low
   Cover the slow cooker with the lid and set it to LOW. Cook for 3 hours, or until the sauce is bubbling and the meatballs are cooked through. Avoid lifting the lid during cooking to retain heat and moisture. The sauce will thicken slightly and the flavors will meld together.
   Look for The sauce is gently bubbling around the edges and the aroma of garlic and herbs fills the kitchen.
   Safe temperature 160°F (71°C) internal temperature (ground meat)
   Tip If the slow cooker runs hot, check at 2 1/2 hours to ensure the meatballs are not overcooking.

After 3 hours, the sauce is bubbling gently around the edges, and the aroma is intensely garlicky and herbaceous.

The meatballs are cooked through and have absorbed some of the sauce, becoming darker in color. The Parmesan has melted into the sauce, adding richness. The texture is thick and glossy.

Finish with Cheese and Basil

3. 3Add Mozzarella and Basil
   After 3 hours, scatter the fresh mozzarella pearls over the top of the meatballs and sauce. Sprinkle the torn basil leaves over the cheese. Replace the lid and cook for an additional 10 minutes, or until the mozzarella is melted and creamy. Serve hot directly from the slow cooker with crusty garlic bread.
   Look for The mozzarella pearls are melted and stretchy, and the basil is bright green.
   Safe temperature 160°F (71°C) internal temperature (ground meat)
   Tip For a more golden top, you can broil the meatballs in an oven-safe dish for 2-3 minutes after slow-cooking, but the slow cooker version is simpler.

The mozzarella pearls are melted and stretchy, creating creamy pockets of cheese. The basil leaves are bright green and slightly wilted, adding a fresh aroma. The dish looks rustic and inviting, with the cheese pulling in strings when you lift a spoon. It's ready to serve.

Common mistakes

One common mistake is lifting the lid too often during the 3-hour cook, which releases heat and extends cooking time. Another is adding the mozzarella too early, which can cause it to separate or become rubbery.

Also, avoid using pre-shredded Parmesan, as it doesn't melt as smoothly. If the sauce seems too thin at the end, you can simmer with the lid off for 15 minutes to reduce, but be careful not to overcook the meatballs.

How to tell it’s done

The meatballs are done when they reach an internal temperature of 160°F (71°C) and the sauce is bubbling. The meatballs will be firm but still moist, and a knife inserted into the center should meet no resistance.

The sauce will have thickened slightly and the flavors will be well-blended. The mozzarella should be fully melted and creamy, and the basil will be wilted slightly but still green. Serve immediately for the best texture.

• Ground meat: 160°F (71°C) in the thickest part