Preheat oven to 350 fahrenheit

Beat brown sugar, peanut butter and egg in a medium bowl with an electronic mixer at medium speed until well blended

Shape dough by heaping tablespoonfuls into 1.5 inch balls

Place them 2 inches apart on parchment paper sheets

Dip fork into granulated sugar, flatten each ball into 0.5 inch thickness, crisscrossing with fork

Press 3-4 chocolate chips on top of each cookie

Bake for 12 minutes or until set

Let cookies cool down for 2-5 minutes, then serve :)