Preheat oven to 375 degrees F. Slice each jalapeño lengthwise, leaving the stem in tact on the jalapeño base; using a paring knife and a small spoon, carefully remove the membrane and seeds from each jalapeño half.
To prepare the filling, mix the cream cheese, cheddar, garlic, and scallions in a medium mixing bowl until well combined. Using a small spoon, fill the cavity of each jalapeño full of the prepared filling.
Unroll the crescent roll dough onto a cutting board, dividing the dough into 2 rectangles, pressing the perforations together with your finger tips to seal them. Using a pizza cutter, cut the sheet of crescent roll dough lengthwise into long thin strips.
Wrap each stuffed jalapeño with the crescent roll strips, criss-crossing them around each stuffed jalapeno to look like mummy bandages, leaving a space towards the top of each jalapeno to add the eyes once the mummies are baked. Place each mummy onto a greased baking sheet or a parchment-lined baking sheet; gently brush each mummy with prepared egg wash.
Bake, uncovered, on the center rack of oven for 20-15 minutes or until the mummies are golden brown and hot throughout. Once the mummies have cooled slightly, add the googly eyes. Serve the mummies warm.
Crescent roll dough is easy to work with as long as it’s well chilled. When you are cutting the strips, if the dough becomes hard to handle, pop it back into the fridge for a few minutes.Always wear food-safe gloves when working with jalapenos. When you cut into the jalapeno flesh, the jalapeno oils from the seeds and membranes (also known as capsaicin) can quickly transfer to your skin which will then burn. It won’t damage your skin, but it sure does hurt!You can make the mummies a few hours ahead of time and gently reheat them on a baking sheet in a 250 degree oven. I like to stuff the jalapenos with the cream cheese mixture, then wait to wrap them with the crescent roll dough strips until I’m ready to bake them. This step goes pretty quickly and this way I can make the mummies right when I want to serve them.If jalapeno peppers are just too spicy for you, you can substitute fresh Anaheim peppers to make these poppers. They are a bigger pepper, but usually not nearly as spicy as a jalapeno, especially once the seeds and membranes are removed. Keep in mind that if you use Anaheim peppers, you will need to purchase extra crescent roll dough.