Spread Tajin or chili salt onto a small plate. Moisten the rim of a shot glass with a lime wedge. Dip the moistened rim into the Tajin or chili salt, coating it evenly.
Tajin or chili salt
In a cocktail shaker, combine watermelon schnapps, chili-infused tequila, lime juice, and simple syrup.
1 ounce watermelon schnapps, 1 ounce chili-infused tequila, 1/2 ounce lime juice, 1/2 ounce simple syrup
Add ice cubes, place the lid on the shaker, and shake vigorously for about 10-15 seconds to chill the mixture.
Ice cubes
Strain the shot mixture into the prepared shot glass.
Garnish the shot with a small watermelon slice, slice of lime, or a piece of chili candy on the rim for an extra burst of flavor and visual appeal, if desired.
Watermelon slice or chili candy