Three words: cake batter milkshake. The key ingredient to boost your next shake with a creamy, rich twist? Boxed cake mix. The dry, pre-mixed cake blend makes a perfect addition to milkshakes, adding ...
Technique tip: Don't fully blend the cake in so you can have larger chucks of cake mixed in. Swap option: Peanut butter instead of tahini would also be so good. Also any kind of cake will work.