Grate 1/3 cup frozen butter through large holes of a cheese grater into 2 1/2 cups baking mix, and toss to combine. Stir in 2/3 cup lager beer just until dry ingredients are moistened. (Dough will be thick.).
Spoon dough evenly into lightly greased miniature muffin pans, filling completely full.
Bake at 450° for 8 to 10 minutes or until biscuits are golden brown.
Note: For testing purposes only, we used Shiner Bock Beer.