Lemon Curd Macarons

INGREDIENTS – Macarons:
3 egg white, room temperature
¼ tsp. cream of tartar
1/3 cup granulated sugar
1 cup almond flour
1-2/3 cup powdered sugar
1-2 drops yellow food coloring optional
DIRECTIONS – Macarons:
1.) Create a double boiler by bringing 1-2 inches of water to a simmer in a small saucepan. Place a heatproof glass bowl on top and make sure it’s not touching the water.
2.) Add the egg yolks, sugar, lemon juice, lemon zest, and salt into the top of your double boiler. Whisk until completely combined and then continue to whisk as the lemon curd cooks (constant whisking prevents the lemon curd from curdling). Continue to whisk the lemon curd for 10-15 minutes or until it becomes thick and paler in color.. If the lemon curd isn’t thickening, turn up the heat and continue to constantly whisk.
3.) Once thickened, remove the glass bowl from the heat. Cut the butter into chunks and whisk into the lemon curd until fully combined and smooth. If desired, pass through a fine mesh strainer and then pour into a glass jar. Let cool to room temperature and then cover and store in the fridge.
4.) Sift together almond flour and powdered sugar into a large bowl and set aside.
5.) In a stand mixer fitted with the whisk attachment, whisk the egg whites on medium speed until they become foamy, then add in the cream of tartar. Turn the mixer up to medium-high and gradually add in the granulated sugar (make sure to add the sugar in very slowly so that the meringue doesn’t deflate). Once all the sugar is added, turn the mixer to the highest setting and whisk on high until soft peaks form. Add in the yellow food coloring if desired, then continue to whisk on high until stiff peaks form.
6.) Using a spatula, gently fold in half of the dry ingredient mixture until fully combined. Then gently fold in the remaining dry ingredients. Continue to gently fold the batter until it reaches a “flowing lava” consistency. You should be able to make a “figure 8” with the batter before it breaks. As soon as you reach this consistency, stop mixing! If you overmix the batter, the macarons won’t rise properly in the oven.
7.) Line a large baking sheet with a silicone mat or parchment paper. Scoop batter into a large piping bag fitted with a round tip. Hold the piping bag perpendicular to the silicone mat and pipe 1 inch rounds. Pick up the baking sheet and drop it onto the counter 3-4 times to help bring any air bubbles to the surface of the macarons. Then use a toothpick to pop any visible air bubbles to make a smooth surface.
8.) Let the macarons sit at room temperature for 30-40 minutes or until a skin forms on the surface. You should be able to lightly touch the surface without any batter being disturbed.
INGREDIENTS – Lemon Curd:
3 large egg yolks
½ cup granulated sugar
¼ cup lemon juice
1 Tbsp lemon zest
pinch salt
¼ cup unsalted butter, room temperature