"Rocky road transforms into a gooey Easter treat! I added lots of Cadbury Creme Eggs®, mini chocolate eggs, and of course the usual marshmallows. You can get creative with other additions, like coconut or nuts."
Set out all the ingredients first. Measure the marshmallows, unwrap the chocolate eggs, and crush the biscuits.
Boil some water in a pot or a kettle and pour into a mug. Dip a sharp knife into the hot water for 1 minute. Remove the knife and wipe dry with paper towel. Use the hot knife to cut along the seam of 2 chocolate eggs, splitting them in half lengthwise. Leave 6 eggs whole.
Grease a 9-inch square baking pan. Line the bottom and sides with parchment paper, leaving an overhang on 2 sides. Randomly place 3 whole eggs on the bottom. Set aside.
Place condensed milk, chocolate, and butter in top of a double boiler over simmering water. Stir frequently, scraping down the sides with a rubber spatula to avoid scorching, until chocolate is melted and smooth, about 5 minutes.
Remove bowl from the heat and stir in marshmallows and biscuits until well combined. Transfer to the prepared pan, covering the three eggs on the bottom. Working quickly, add the 3 remaining whole eggs on top, along with the 4 egg halves. Sprinkle mini eggs on top. Refrigerate until chocolate is set, 1 to 2 hours.
Gently lift the rocky road out of the pan using the edges of the parchment paper. Place on a cutting board and use the hot knife method from step 2 to slice into squares. Cut through some of the whole eggs so you get the gooey centers oozing out of each slice.