Homemade Sweet Tarts

Ingredients

• 1/4 cup. clear soda (Blue Sky, Cream Soda, Sierra Mist, 7-UP)
• 3/4 tsp. gelatin
• 3-4 cup. powdered sugar, plus more for rolling
• 2 tsp. citric acid
• Flavored extracts
• Food coloring
• 1/2 tsp. each of lemon and orange zest – optional