Step 1

Heat oven to 400 degrees F (200 degrees C).

Step 2

In a small bowl, mix together flour, baking powder, and salt.

Step 3

In a separate medium-sized bowl, stir together melted butter and sugar. Add egg yolk, vanilla, and mik and whisk until blended. Stir wet ingredients into dry ingredients, gently fold in chocolate chips and pour into a buttered 10-ounce ramekin.

Step 4

Bake for 15 minutes or until top is golden and center is completely cooked.

Step 5

Remove ramekin from oven and place on a rack to cool slightly.

Step 6

Best if enjoyed warm.