Ingredients
- Butter, unsalted — 2 tablespoons
 - Super-fine almond flour — 2 tablespoons
 - Heavy cream — ¾ cup
 - Extra-sharp cheddar, shredded — 1½ cups
 - Dijon mustard — ½ teaspoon
 - Garlic powder — ¼ teaspoon
 
Instructions
- Warm the pan: Place the saucepan over low to medium-low heat and add the butter. Let it melt slowly; you do not want the butter to brown at this stage.
 - Build a keto roux: Sprinkle in the almond flour while whisking or stirring with the spoon. The mixture will form a loose paste. Cook this paste for roughly one minute to remove any raw nut taste. The key is gentle heat—no rushing here.
 - Stream in the cream: Still stirring, pour in the heavy cream in a thin stream. Keep the sauce moving until the paste dissolves and the liquid thickens slightly. Small bubbles around the edges signal you are ready for cheese.
 - Fold in the cheddar: Lower the heat to the minimum setting. Add the shredded cheese in three small handfuls, letting each addition melt before adding the next. Stir patiently; direct high heat can break the sauce.
 - Season: Finish with Dijon mustard and garlic powder. Stir until smooth, then taste. Extra salt is rarely needed because sharp cheddar carries a salty edge on its own.
 - Serve: Remove the pan from heat. The sauce will thicken more as it cools, which makes it ideal for dipping or pouring.
 
Notes
- The cheese matters. Extra-sharp cheddar gives deeper flavor and melts smoothly if shredded fresh. Bagged cheese often contains anti-clumping starch that can thicken the sauce too far.
 - Low heat preserves texture. High heat can split the sauce into oil and solids. If that happens, whisk in a tablespoon of cold cream off the heat to bring it back together.
 - Mustard’s role is small yet important. It brightens the richness without shouting its own name.
 - If the sauce feels thick after standing, a splash of warm cream revives it.
 
- Prep Time: 5 minutes
 - Cook Time: 10 minutes
 - Category: Sauce
 - Method: Stovetop
 - Cuisine: American
 
Nutrition
- Serving Size: 1 serving
 - Calories: 180 kcal
 - Sugar: 1 g
 - Sodium: 310 mg
 - Fat: 16 g
 - Saturated Fat: 10 g
 - Unsaturated Fat: 5 g
 - Trans Fat: 0 g
 - Carbohydrates: 2 g
 - Fiber: 0 g
 - Protein: 7 g
 - Cholesterol: 45 mg