01 - Preheat oven to 350°F (175°C). Spread flour on a baking sheet and bake for 5 minutes. Let cool completely.
02 - In a mixing bowl, cream together butter, brown sugar, and granulated sugar until light and fluffy.
03 - Mix in milk and vanilla extract until combined.
04 - Add cooled, heat-treated flour and salt. Stir until well incorporated.
05 - Fold in mini chocolate chips.
06 - Scoop out tablespoon-sized portions of dough and roll into balls. Place on a parchment-lined baking sheet.
07 - Chill the dough balls in the freezer for 20–30 minutes, until firm.
08 - Melt chocolate and coconut oil (if using) in a microwave or double boiler until smooth.
09 - Using a fork or dipping tool, dip each chilled dough ball into the melted chocolate, allowing excess to drip off.
10 - Place coated truffles back on the parchment-lined sheet. Optionally, drizzle with extra chocolate or sprinkle with mini chips. Refrigerate until the chocolate is set, about 15 minutes.
11 - Serve chilled or at room temperature.