Time 12m Yield servings Number Of Ingredients 8 Steps:

Spray 12-ounce mug with cooking spray. Add butter; microwave on high until melted, about 10 seconds. Stir in peanut butter and sugar until combined. Add egg yolk; stir in flour. Add milk and vanilla extract. Top with peanuts., Microwave on high until set, 1 to 1-1/2 minutes. Serve immediately.

Time 15m Yield 2 Number Of Ingredients 7 Steps:

Place butter and peanut butter in a microwave-safe mug. Microwave until butter and peanut butter are melted, about 30 seconds. Stir brown sugar, white sugar, and salt into butter mixture. Add egg; stir flour into mixture. Cook in the microwave until cookie is set, 2 to 4 minutes.

Time 3m Number Of Ingredients 7 Steps:

Add all ingredients except the chocolate chips (if using) to an 8-ounce or larger microwave-safe mug. Use a fork to stir together until combined. It might seem lumpy at first but keep stirring and it’ll resemble cake batter in no time! Microwave on high until the cake has risen and springs back slightly when you poke it, 45-60 seconds. If it’s not done after 60 seconds, try cooking in 15-second intervals until done. (To bake in the oven, heat oven to 375 degrees Fahrenheit and place batter in an oven-safe ramekin or oven-safe mug. Bake until domed and the top springs back when you poke it, 15-20 minutes. ) Top with chocolate chips or chunks if desired and enjoy right away.