For the curd
1-In a small bowl, whisk egg, sugar,: In a small bowl, whisk egg, sugar, cornstarch, salt, and zest (for lime curd) together until combined, then whisk in the citrus juice and vanilla.
2-In a small saucepan, melt butter on: In a small saucepan, melt butter on low-medium heat.
3-Pour the lemon mixture into the saucepan: Pour the lemon mixture into the saucepan and whisk over medium-low heat for about 5-10 minutes, until the mixture is thickened and bubbling slightly. Curd should coat the back of a spoon when it’s ready.
4-Optional: Optional: if making lime curd, add a drop of green food coloring to enhance the green color.
5-Strain the curd through a fine mesh: Strain the curd through a fine mesh sieve into a jar or bowl. Cover and chill for 2 hours or overnight.
6-Store any excess curd in a sealed: Store any excess curd in a sealed container in the fridge for 1-2 weeks.

For the cookies
7-Prepare a baking sheet with parchment paper: Prepare a baking sheet with parchment paper.
8-In the bowl of a stand mixer: In the bowl of a stand mixer with the paddle attachment, cream the butter and sugar together until fluffy. Add in the egg and vanilla extract, mixing until fully combined.
9-Add freeze dried fruit to a blender: Add freeze dried fruit to a blender or food processor and grind into a fine powder. If needed, use a mortar and pestle (or a rolling pin) to grind down any large chunks left.
10-Mix the flour, salt, and fruit powder: Mix the flour, salt, and fruit powder together in a separate bowl, then combine with wet ingredients and mix well to form a dough.
11-Use a cookie scoop to portion the: Use a cookie scoop to portion the dough, roll into 12 smooth balls, and arrange them on the baking sheet. Gently press your thumb, knuckle, or the back of a spoon on top of each dough ball to make a circular indent.
12-Chill the sheet of cookies for at: Chill the sheet of cookies for at least 30 minutes (or overnight).
13-Preheat the oven to 350ºF and bake: Preheat the oven to 350ºF and bake cookies for 12 minutes, scooting after baking if needed. Let the cookies cool completely before adding your jams or curds to each one!