Ingredients
Wet Ingredients
- 2 tbsp butter
- 1 large egg yolk
- 1/4 tsp vanilla paste
Dry Ingredients
- 1.5 tbsp granulated sugar
- 1/2 tbsp brown sugar
- Pinch salt
- 3 tbsp all purpose flour
- 1 tbsp corn starch
- 1/2 tsp granulated sugar (for topping)
Instructions
- Melt Butter: Start by melting the butter directly in the mug using the microwave. Heating time will vary depending on your butter’s temperature but expect 15-30 seconds until fully melted.
- Combine Sugars and Salt: Add the granulated sugar, brown sugar, and a pinch of salt into the melted butter and stir thoroughly until the mixture is smooth and combined.
- Add Egg Yolk and Vanilla: Incorporate the egg yolk and vanilla paste into the mixture, stirring well to blend all wet ingredients evenly.
- Mix Dry Ingredients: Add in the all-purpose flour and corn starch, then mix gently just until everything is combined. Avoid overmixing to keep the cookie soft.
- Prepare for Baking: Flatten the mixture’s surface using a small spatula or the back of a spoon, then sprinkle 1/2 teaspoon of granulated sugar on top for a classic sugar cookie crunch.
- Microwave Bake: Cook the mug cookie in the microwave for 40-50 seconds. Start checking at 40 seconds and if the center is still slightly undercooked, microwave for an additional 5-10 seconds. Serve immediately for best texture and flavor.
Notes
- Microwave wattages vary, so you may need to adjust cooking time slightly.
- Use room temperature butter for quicker melting.
- Do not overmix the batter to maintain the chewy texture.
- Enjoy the cookie warm from the mug for a soft and fresh experience.
- Can add small mix-ins like chocolate chips or nuts for variation.
- Prep Time: 2 minutes
- Cook Time: 50 seconds
- Category: Dessert
- Method: Microwaving
- Cuisine: American
