• 1 oz. Casamigos Blanco Tequila

• 1 oz. Fresh Blood Orange Juice

• .25 oz. Simple Syrup

• 2 Dashes Firewater Bitters or Serrano Slice

• Thick Rim Equal Parts of Salt/Sugar/Tajín®

• Top off Chilled Prosecco

• Garnish Upside Down Blood Orange Peel

Wet rim of glass with lime wheel or wedge, then dip into salt mixture. Combine all ingredients, except prosecco, into a tin shaker. Muddle serrano, if using. Add ice, shake vigorously and fine strain into a rimmed champagne flute. Top off with chilled prosecco and garnish.