A smooth, rich cheddar sauce with a pleasantly sharp cheese flavor and a silky, pourable consistency. Built on a traditional butter-and-flour roux, this versatile sauce is especially good over Denver, Western, bacon, sausage, and vegetable omelettes. It can be prepared several days ahead and gently reheated for breakfast.

Servings: About 12–16 omelettes (approximately 2 cups)

Prep Time: 5 minutes

Cook Time: 10 minutes

Total Time: 15 minutes

Difficulty: Level 2 Easy

Cost: Level 2 Economical

Region / Ethnic Origin: United States

Ingredients

2 tablespoons unsalted butter

1 1/2 cups whole milk

6 ounces sharp cheddar cheese, freshly grated

1/2 teaspoon Dijon mustard

1/8 teaspoon garlic powder

1/8 teaspoon white pepper

Kosher salt, to taste

Additional whole milk, as needed for reheating

Instructions

Melt the butter in a medium saucepan over medium-low heat.

Add the flour and whisk continuously for 1–2 minutes, until smooth and lightly bubbling. Do not allow the roux to brown.

Gradually whisk in the milk, adding a little at a time initially to prevent lumps.

Cook for 3–5 minutes, whisking frequently, until the sauce thickens enough to lightly coat the back of a spoon.

Reduce the heat to low. Add the Dijon mustard, garlic powder, and white pepper.

Remove the saucepan from the heat and gradually whisk in the grated cheddar, one handful at a time, until completely melted.

Taste and adjust with kosher salt. The sauce should be slightly thinner than conventional macaroni and cheese sauce.

Serve immediately or transfer to shallow containers for refrigeration.

Cook’s Notes

Cheese selection: Use a good-quality block of sharp cheddar. Avoid preshredded cheese, which may produce a less smooth sauce.

Prevent graininess: Do not boil the sauce after incorporating the cheese.

Consistency: The sauce should flow smoothly from a spoon without forming a heavy blanket over the eggs.

Portioning: Refrigerating the sauce in small containers makes it easy to reheat only what is needed.

Serving Suggestions

Excellent over the American Omelette, particularly the Denver, Western, broccoli and cheddar, and bacon and cheddar variations.

Also suitable for steamed broccoli, baked potatoes, cauliflower, and breakfast casseroles.

Beverage Suggestions

Freshly brewed coffee or café au lait

Unsweetened iced tea

Fresh orange juice

Agave Lemonade

Storage and Reheating

Refrigerate promptly in airtight containers at 40°F or below for up to 4 days.

Reheat individual portions over low heat, stirring frequently. Add milk 1 teaspoon at a time if the sauce has thickened. Heat refrigerated leftovers thoroughly to 165°F without prolonged boiling.

Variations

Smoked cheddar: Replace 2 ounces of the sharp cheddar with smoked cheddar.

Mustard cheddar: Increase the Dijon mustard to