[header] How to make jello cookies [title] Preheat the oven to 350 ° f (180 ° c) and line a baking sheet with parchment paper or grease. [title] Combine the butter, sugar, gelatin, eggs and vanilla in a mixing bowl and beat the ingredients on medium speed using a spatula, a handheld mixer or a stand mixer with a paddle attachment. [title] Whisk together the flour, baking powder and salt in a separate mixing bowl. 
[title] Add 1/2 cup of the dry ingredients to the wet ingredients while mixing at medium speed. [step] You can also hand-mix if preferred.