Start by heat-treating the flour to make it safe to eat. Spread it on a baking sheet and heat until warm throughout. Let it cool completely before using.
In a bowl, beat the softened butter with brown sugar and granulated sugar until light and fluffy. This step creates a smooth and rich cookie dough base.
Mix in the milk and vanilla extract. These ingredients soften the dough and enhance the overall flavor.
Slowly mix in the cooled heat-treated flour and salt. The dough should be thick, soft, and slightly sticky.
Stir in the mini chocolate chips until evenly distributed throughout the dough.
Scoop the dough and roll it into small balls. Place them on a lined baking sheet and refrigerate until firm.
Melt the chopped chocolate with oil until smooth. Stir gently to avoid overheating.
Dip each chilled dough ball into melted chocolate. Tap off excess coating and place back on parchment paper.
Refrigerate the truffles until the chocolate coating is fully set and firm.