Step 1

Mix the schnapps and cranberry juice in a shaker; pour into an ice-filled glass.

Step 2

Muddle the jalapeno pepper, lemon and lime slices, tequila, blue curacao and simple syrup (to make a batch, dissolve sugar in equal parts hot water and chill) in the shaker. Slowly strain into the glass over the red layer. Garnish with watermelon, if desired.