In a large microwave-safe bowl, add 2 cups milk chocolate chips, 2 cups butterscotch chips, and 1/4 cup creamy peanut butter. Microwave, stirring after 30 seconds, until melted and smooth.: The first scent you will notice is the warm, almost caramel fragrance as the chips start to soften, which is inviting and helps set the mood. I like to use a roomy bowl so stirring is easy, and seeing the chips piled together gives you a visual reassurance that everything is ready to melt uniformly. A common error here is overcrowding a small bowl, which can lead to uneven melting and hot spots.
Stir in 12 ounces chow mein noodles and mix until combined.: As you microwave in short bursts, you will hear tiny shifts in texture and see glossy streaks appear, signaling the chocolate is loosening. Stirring after each interval ensures the heat distributes and prevents burning, and watching the sheen form is very satisfying. If you overheat and the chocolate becomes grainy, stop microwaving and whisk vigorously off heat to coax it back, avoiding too much additional heat which causes seize.
Scoop out 2 tablespoons of the mixture and place on a baking sheet pan lined with parchment paper. Use 1 (9-ounce) bag Cadbury mini eggs to top each nest with 3 Cadbury eggs. Let sit until chocolate has hardened.: When you fold in the chow mein noodles , watch how the strands become coated and begin to stick together in clumps, which is the right visual cue. The sound changes to a softer crunch as the noodles absorb some of the melted chips, and the mixture should look glossy and tangled. A typical mistake is overmixing, which can crush the noodles and make the clusters dense rather than airy.
Scoop out 2 tablespoons of the mixture and place on a baking sheet pan lined with parchment paper: As you portion the nests, you will feel the warmth in the mixture and notice it holds shape while still pliable, which is ideal for forming. Using a spoon or cookie scoop helps maintain consistent sizing, and slipping the scoops onto parchment prevents sticking and eases cleanup. If you make the scoops too large they may not set properly in the center, so keep them modest for even cooling.
Use 1 9 ounce bag Cadbury mini eggs to top each nest with 3 Cadbury eggs: Pressing the Cadbury mini eggs gently into the warm tops gives each nest personality and a firm anchor point, and you will hear a slight tap as the candy meets the chocolate. The colorful shells create a pleasing contrast, and placing three eggs forms a balanced cluster visually. Avoid pushing too forcefully, which can crush the eggs or cause the nest to lose its shape.
Let sit until chocolate has hardened: As the nests cool, the glossy surface will turn matte and the cluster will firm, signaling readiness. The room will smell faintly of chocolate and butterscotch, and touching the underside should feel set rather than tacky. If humidity is high, chilling briefly helps, but avoid refrigeration that can cause condensation and dull the candy shells.