Halloween Baking Lab: FrankenPup Cakes and Yummy Mummy Cookies!

Written on 10/01/2025
Auntie M


🎃 Halloween Baking Lab

Frankenstein Cupcakes & Mummy Cookies


👩🏻‍🍳 Ingredient Tips Before You Start

  • Oats: Always choose organic (Roundup aka glyphosate-free when possible) since oats are highly sprayed. You can make your own oat flour in a blender, food processor, or coffee grinder with some rolled oats too!

  • Peanut Butter: Must be just peanuts. Avoid xylitol (toxic for dogs), palm oil, or added sugars. My favorites are Crazy Richard’s or fresh-ground at stores like WinCo or Whole Foods.

  • Icing Notes: Yogurt icings can crack if made too far in advance. For longer-lasting decorations, try my icing mix ➝ Shop Icing Mix

  • Nutrition Note: Recipes include flaxseed meal to help balance fiber. When feeding treats, reduce breakfast or dinner slightly to keep meals balanced.


🧟 Frankenstein Cupcakes

Ingredients

  • 1 ½ cups Organic Oat Flour (glyphosate-free — you can even grind your own rolled oats in a blender!)
  • 1 Egg
  • ½ cup Water
  • ¼ cup Peanut Butter (peanuts only)
  • 1 (15 oz) can 100% Pure Pumpkin
  • 1 Tbsp Flaxseed Meal
  • 2 tsp Baking Soda

Procedure – Easy Version

  1. Bake cupcakes (see “Basic Cupcake Procedure” below).

  2. Slice a small section off one side to create a flat surface.

  3. Cover the top with green icing (see icing recipe below).

  4. Use plain peanut butter or black PB (mix with activated charcoal until you reach the desired black, warning-can be messy!) place in a piping bag or zip-lock bag to pipe hair, eyes, mouth, and stitches.

  5. Optional: add “bolts” at the neck using chicken jerky pieces.

Procedure – Advanced Version

  1. Bake cupcakes (see “Basic Cupcake Procedure” below).

  2. Stack two cupcakes top-to-top with icing between them.

  3. Freeze for 20 minutes.

  4. Coat the entire stack in green icing. Freeze another 20 minutes.

  5. Pipe on hair, face, and stitches with peanut butter or charcoal peanut butter.

  6. Add creative “bolts” using extra cookie dough, chicken jerky, or even coconut flakes.


🧁 Basic Cupcake Procedure (for both versions)

  1. Preheat oven to 350°F (175°C).

  2. Grease The cupcake pan with cold organic unrefined coconut oil, use a silicone brush or your fingers.

  3. In a bowl, combine all ingredients. 

  4. Stir together until mixed well.

  5. Fill each cup 2/3 full.

  6. Bake for 12-15 minutes, or until a toothpick comes out clean.

  7. Let cool for 5 minutes before turning the pan upsidedown to pop them out. Cool completely (in fridge or freezer) before decorating.

🥣 Icing Recipe

  • Mix plain Greek yogurt with peanut butter for a thicker consistency.

  • Add natural food coloring (note: peanut butter makes it harder to color but makes the icing stiffer and easier to handle).

  • For the best colors without added flavors, I recommend Wilton brand (find on Amazon).

  • For the easiest option, use my pre-mixed icing blend ➝ [Shop Icing Mix].


📺 Watch the Tutorial

Want to see it step by step? Watch the video here ➝



👻 Mummy Cookies

Ingredients

  • 1 ¼ cups Organic Oat Flour (glyphosate-free — grind rolled oats in a blender!)
  • 1 Egg
  • ¼ cup Water
  • ¼ cup Peanut Butter (peanuts only)
  • ½ Tbsp Flaxseed Meal
  • 1 tsp Baking Soda

Procedure

  1. Preheat oven to 350°F (175°C).

  2. Mix dough. If too sticky, add oat flour. If too dry, add water.

  3. Roll dough directly onto a lined cookie sheet (less mess, no transfer).

    • Tip: Don’t over-flour when rolling or cookies may dry out.

  4. Cut into shapes (you can use any shape, you don't have to have fancy cutters! A round cutter, PB jar lid, or gingerbread cutter work well).

  5. Bake 7–8 minutes, keeping an eye on them — they should feel set but soft.

  6. Cool completely before icing.

  7. Pipe plain Greek yogurt back-and-forth to make “mummy bandages.”

  8. Add eyes/mouth with peanut butter or charcoal peanut butter. Done!


🥣 Icing "Wraps" Recipe

  • Use Plain Non-fat Greek yogurt for your mummy wrap, place into a piping bag or a zip lock bag and cut a 1/4 inch piece off of one corner, make sure that you're using the bag laying flat when you go to ice so that way you get a wide stripe!


📺 Watch the Tutorial

Want to see it step by step? Watch the video here ➝