This high-protein shake recreates the nostalgic flavor of the classic Marathon Bar using a blend of creamy caramel, rich chocolate, and a hint of sea salt. It is a perfect post-workout recovery drink that tastes like a decadent candy bar without the sugar crash.
For a thicker, milkshake-like texture, use a frozen banana instead of ice. To make this vegan, use a plant-based chocolate protein powder and soy or coconut yogurt. This shake can be prepared up to 12 hours in advance if kept in an airtight shaker bottle, though it is best enjoyed fresh.