# What You'll Need:
→ Dry Ingredients
01 - 1 cup all-purpose flour
02 - 1/4 teaspoon baking soda
03 - 1/4 teaspoon salt
→ Wet Ingredients
04 - 1/2 cup unsalted butter, melted
05 - 1/2 cup light brown sugar, packed
06 - 1/4 cup granulated sugar
07 - 1 large egg
08 - 1 teaspoon pure vanilla extract
→ Mix-ins
09 - 1/2 cup semi-sweet chocolate chips
10 - 6 squares milk or dark chocolate (for gooey center)
# Steps to Follow:
01 - Whisk together flour, baking soda, and salt in a medium bowl.
02 - Stir melted butter, brown sugar, and granulated sugar until smooth in a separate bowl.
03 - Add egg and vanilla extract to the wet mixture and mix until fully combined.
04 - Gradually add dry ingredients to wet ingredients, stirring until just incorporated.
05 - Fold in the semi-sweet chocolate chips gently.
06 - Lightly grease or line six silicone muffin cups.
07 - Spoon about 2 tablespoons of dough into each cup, pressing gently to cover the bottom evenly.
08 - Place one chocolate square in the center of each cup, then cover with another tablespoon of dough, sealing the chocolate inside.
09 - Preheat the air fryer to 320°F (160°C) for 3 minutes.
10 - Arrange muffin cups in the air fryer basket without touching; cook for 7 to 8 minutes until tops are golden and centers remain soft.
11 - Allow cookie cups to cool in the cups for 5 minutes before serving warm to preserve the gooey center.