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Dinner · Part 2 of 3: Instructions

Slow Cooker Beef and Potato Au Gratin for a Cozy Dinner Step-by-step instructions

A close-up of a serving of slow cooker beef and potato au gratin with melted cheese and fresh parsley.
Prep
Cook
Total
Serves
6
Includes 5 min resting

Before you start

Before beginning, ensure all ingredients are measured and ready. Peel the potatoes and slice them into uniform rounds, approximately 1/8 inch thick, using a mandoline or a sharp chef's knife. Shred the cheddar cheese from a block for optimal melting.

Make sure the slow cooker is clean and the counter space is organized, as having everything prepped in advance makes the assembly process smooth and efficient, allowing for a stress-free cooking experience.

Ingredients at a glance (5)
  • 1 lb ground beef
  • 2 lb potatoes, thinly sliced
  • 1 1/2 cups heavy cream
  • 2 cups shredded cheddar cheese
  • fresh parsley, chopped, for serving

Instructions

Browning Phase

  1. Brown the Beef
    Heat a large skillet over medium-high heat. Add the ground beef and cook, breaking it apart with a spatula, until it is fully browned and no longer pink. Ensure the internal temperature reaches 160°F (71°C) to guarantee it is safely cooked through. Drain any excess fat if necessary before proceeding to the next step.
    Look for The beef should be browned and crumbly.
    Safe temperature 160°F (71°C) internal temperature (ground meat)
    Tip Do not crowd the skillet to ensure proper browning.

The ground beef should be deeply browned, fragrant, and crumbly with no remaining pink areas. The fat should be rendered out, leaving the meat ready to be incorporated into the slow cooker layers. Ensure the beef reaches the required safety temperature before removing it from the heat to drain excess moisture or fat, which helps prevent a greasy sauce.

Assembly Phase

  1. Layer the Ingredients
    Prepare the slow cooker by greasing it lightly. Begin layering the thinly sliced potatoes and the browned ground beef in the slow cooker. Pour the heavy cream evenly over the layers to ensure the potatoes are well-moistened. Sprinkle the shredded cheddar cheese over the top, covering the entire surface to create a delicious, golden crust.
    Look for The cream should partially submerge the potato slices.
    Tip Use a mandoline for perfectly even potato slices that cook uniformly.

The slow cooker should look like a structured assembly of alternating layers. The potatoes should be tightly packed to ensure they cook evenly, and the cream should be distributed to reach the bottom layers.

The cheese should be spread as an even blanket across the top, ready to melt into a golden, bubbling layer that will provide flavor throughout the entire dish.

Cooking and Finishing Phase

  1. Slow Cook and Garnish
    Cover the slow cooker and cook on low for 4 hours or until the potatoes are tender and the sauce is bubbling and thickened. Once done, remove the lid and sprinkle with fresh chopped parsley. Allow the dish to rest for 5 minutes before serving to let the sauce set properly.
    Look for The cheese should be melted and bubbling.
    Tip Check for tenderness by piercing a potato slice with a fork.

At the end of this phase, the aroma of creamy potatoes and savory beef should fill the kitchen. The sauce should be thickened and bubbling, and the cheese should be fully melted and slightly golden. A fork should easily pierce through the top layer into the center of the dish, confirming that the potatoes are perfectly tender and ready to serve.

Common mistakes

A common mistake is slicing the potatoes too thick, which prevents them from cooking through properly during the allotted time. Another error is failing to brown the ground beef sufficiently before adding it to the slow cooker, as this step is crucial for developing deep, savory flavors.

Additionally, avoid lifting the lid frequently, as this releases heat and moisture, which can significantly extend the cooking time and dry out the sauce.

How to tell it’s done

The dish is done when the potatoes are fork-tender and the sauce has thickened into a rich, creamy consistency that bubbles around the edges. A knife should slide through the center of the potato layers with no resistance.

The ground beef, having been browned beforehand, is fully cooked to a safe internal temperature of 160°F (71°C) during the initial browning phase, ensuring a delicious and safe meal.

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

Coming up in Part 3: common questions

  • Can different types of potatoes be used for this recipe?
  • Why is it important to brown the beef before adding it to the slow cooker?
  • Can this dish be prepared in an oven instead of a slow cooker?

Also in Part 3: variations (Bacon and Onion Variation, Herb-Infused Variation), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)