Prep your trays: Line two baking sheets with silicone macaron mats or parchment. If using parchment, draw 2-inch egg shapes as guides, spaced 2 inches apart. Flip the parchment so pencil marks face down.
Make the almond mixture: Sift almond flour and powdered sugar together. Discard any coarse bits. Stir in half the egg whites (unwhipped) until it forms a thick paste. Tint with gel coloring for your chosen pastel shade.
Cook the sugar syrup: In a small saucepan, heat granulated sugar with a splash of water to 244–248°F (118–120°C). Do not stir. Meanwhile, start whipping the remaining egg whites with a pinch of cream of tartar to soft peaks.
Whip the Italian meringue: With the mixer running on medium, slowly stream the hot syrup into the egg whites. Beat until glossy, firm peaks form and the bowl feels just warm, not hot.
Macaronage: Fold one-third of the meringue into the almond paste to loosen. Gently fold in the rest until the batter flows like lava and forms a thick ribbon that disappears in 10–15 seconds. Do not overmix.
Pipe egg shapes: Transfer batter to a piping bag fitted with a small round tip. Pipe ovals (egg shapes) on your mats. Tap the trays firmly on the counter several times to release air bubbles. Pop visible bubbles with a toothpick.
Dry the shells: Let the trays sit at room temperature until the surface is no longer tacky, 30–60 minutes depending on humidity. This step prevents cracking and promotes feet.
Bake: Bake at 300°F (150°C) for 14–17 minutes, rotating halfway. Shells are done when they lift cleanly from the mat and the tops don’t wobble. Cool completely on the trays.
Make the filling: Beat butter until fluffy. Add powdered sugar, salt, and vanilla. Mix until smooth, adding a teaspoon or two of cream as needed. You want a spreadable, not runny, consistency.
Pair the shells: Match similar-sized egg halves. Pipe a small ring of buttercream on the inside of one shell, leaving a well in the center for the stick.
Attach sticks: Dip one end of each lollipop stick into melted white chocolate. Press into the buttercream well. Add a small dot of chocolate on top of the stick for extra hold.
Sandwich: Gently press the second shell on top to make a macaron pop. Wipe any squeezed-out filling. Chill for 10–15 minutes to set the structure.
Decorate: Thin white chocolate slightly if needed. Drizzle or dip part of each macaron pop, then add sprinkles or draw zigzags and dots with colored chocolate. Let set on parchment or stand them upright in foam.
Mature the macarons: For best texture, refrigerate the finished pops in an airtight container for 12–24 hours. This allows the filling to soften the centers for that classic chew.