Limoncello Bars

Name: Limoncello Bars
Prep time: 40 min
Cook time: 10 min
Total time: 50 min
Cuisine: European, Mediterranean
Ingredients: 2 C graham cracker crumbs; 1/3 cup unsalted butter, melted; Lemon Cheesecake; 1 1/2 cups boiling water; 3 tsp powdered gelatin; 2 blocks cream cheese, softened; 1 1/4 cups sweetened condensed milk; 2 lemons, zested and juiced; 3 drops yellow food gel (optional); 1/2 cup boiling water; 1 cup caster sugar