Start by soaking your gelatine sheets in cold water. If using powdered gelatine, just follow the instructions on the package.
Crush the cookies into fine crumbs using a food processor, blender, or by placing them in a zip-top bag and rolling over them with a rolling pin.
Stir in the melted butter until the mixture feels like damp sand and holds together when pressed.
Line a muffin tin with paper liners. Add about a tablespoon of crust to each cup and press it down firmly using your fingers or the bottom of a small glass. Pop the tin in the freezer while you make the filling.
Blend fresh spruce tips with ¾ cup heavy cream (or half-and-half) and ⅓ cup sugar. Blend for at least two minutes until smooth and light green.
Pour the mixture into a small pot and gently warm it over low heat — don’t let it boil. Add the softened gelatine and stir until fully dissolved, then remove from heat.
Let the mixture cool to room temperature, then mix in the cream cheese and mascarpone. Use a spatula or hand mixer on low until smooth.
Take the muffin tin out of the freezer and fill each cup with the spruce tip layer. Smooth the tops and chill in the fridge until set (or use the freezer to speed it up).
Make a quick lemon curd. Cook ⅓ cup sugar, ⅓ cup lemon juice, 2 eggs, and 2 teaspoons zest over low heat, whisking often until thick (about 5 minutes, or 170°F). Remove from heat and stir in ¼ cup butter. Let it cool.
Whip cream to stiff peaks, sweeten to taste, and gently fold in the cooled lemon curd. Chill while you prep the cakes.
Remove cakes from the fridge, lift them from the tin, and peel off the liners.
Pipe the lemon cream on top of each cake and decorate with a fresh spruce tip or a few soft needles.
Enjoy!