Homemade Marshmallow Rice Krispie Treats

INGREDIENTS

2 tbsp

unflavored powdered gelatin (if using packets, you’ll need 2)

1 cup

cool water

2 cups

granulated sugar

1/8 tsp

cream of tartar

1 tsp

pure vanilla extract

1/8 tsp

kosher salt

5 tbsp

unsalted butter, melted and cooled

to 9 cups (240 to 270 g) crisp rice cereal (recommended gluten free brands: Erewhon, Nature’s Path Organic)