Step 1: Heat-treat the flour
- Spread the flour onto a baking sheet and bake at 350°F (175°C) for 5 minutes, or microwave in 30-second intervals, stirring in between, until it reaches 165°F (74°C). Let cool completely.
Step 2: Make the cookie dough filling
- In a bowl, cream the butter, brown sugar, and granulated sugar together until light and fluffy.
- Mix in the vanilla extract and salt. Gradually add the heat-treated flour, alternating with the milk, until a soft dough forms.
- Fold in the mini chocolate chips.
Step 3: Prepare the chocolate shell
- Melt the chocolate chips and coconut oil (if using) in a microwave-safe bowl in 20-second intervals, stirring between each, until smooth.
- Line a mini muffin tin with paper liners. Spoon about 1 teaspoon of melted chocolate into each liner and use a small spoon or pastry brush to coat the sides.
- Chill the tin in the refrigerator for 10 minutes, or until the chocolate sets.
Step 4: Assemble the cups
- Scoop about 1 tablespoon of cookie dough filling and roll it into a small ball. Place it into each chocolate-coated liner.
- Cover the cookie dough with another teaspoon of melted chocolate, ensuring it completely seals the filling. Tap the tin gently to smooth the tops.
Step 5: Chill and serve
- Refrigerate the cups for 20-30 minutes, or until fully set.
- Remove the paper liners and enjoy!