Freeze 2 cups quartered strawberries and 1 stemmed pickled jalapeno, 2 hours. Mix 1/4 cup kosher salt, 1/4 teaspoon cayenne and the zest of 1 lime. Rub 4 beer mug rims with a lime wedge, dip in the salt mixture and chill in the freezer. Blend the frozen strawberries and jalapeno with two 12-ounce bottles lager, 1 cup frozen limeade concentrate, 2 ounces strawberry liqueur and 1 cup ice until slushy. Pour into the glasses; garnish with strawberries and pickled jalapenos.