Sprinkle powdered gelatin over ¼ cup of cold water. Set aside to allow gelatin to solidify.
¼ Cup Water, 2 ½ Teaspoon Powdered gelatin
Mix granulated sugar, sweetened condensed milk, and ¾ cup of room temperature water in a microwave-safe bowl. Microwave on full power for 1 minute, then take it out and stir. Microwave for another minute, then stir again. Keep heating in 30-second bursts if needed until the sugar is completely melted.
1 ½ Cup Granulated sugar, ⅔ Cup Sweetened condensed milk, ¾ Cup Water, 2 Cups White chocolate chips
Place white chocolate chips in a microwave safe bowl. Heat for 1 minute at 50% powder, then take it out. Stir well. Keep heating in 30-second bursts until chips are melted.
Add set gelatin to the water/sugar/sweetened condensed milk mixture. Whisk well until gelatin is fully melted.
Pour melted white chocolate into bowl with sugar/condensed milk/water. Stir until well combined.
Add food coloring to mirror glaze.
Orange gel food coloring
Put a mesh sieve over a bowl. Pour the mirror glaze through the sieve to catch any unmelted white chocolate pieces.
Place an instant read thermometer into mirror glaze. Set aside until glaze reaches 90℉ (32℃).
Once glaze has cooled to 90℉ (32℃), remove cake from refrigerator. Place on a wire rack with a sheet pan underneath to catch any extra mirror glaze that drips off.
Start pouring the glaze in the center of the cake, then move in circles outward until it covers the sides.
Let glaze set for 30 minutes. Remove from wire rack and place on a serving dish.
Decorate as desired.