How to Make Meringue Mushrooms: Red Toadstools and Classic Shapes

When developing yule log recipes I asked whether readers preferred red toadstools or classic white mushrooms — the response was split, so this guide includes both. The method is similar to a standard marshmallow-style meringue, but because these are baked slowly in the oven, there’s no need to heat the egg whites before whipping.

Meringue mushrooms are traditionally used to decorate bûche de Noël and other holiday desserts, and they also make a delightful, handmade addition to your Christmas table. They’re lightweight, pretty, and surprisingly simple once you know the technique.

Grab your ingredients

• Egg Whites: Fresh egg whites are best. Separate eggs while cold, then bring the whites to room temperature before whipping for optimal volume.
• Cream of Tartar: This stabilizes the egg whites and helps prevent collapse — it’s recommended.
• Sugar: Granulated sugar is used to create a glossy, stable meringue.
• Salt: A pinch of kosher salt enhances flavor.
• Red Gel Food Coloring (optional): Use a concentrated gel for vivid red toadstools without adding too much liquid.
• Melted Chocolate: A small amount of melted chocolate is used as “glue” to attach caps to stems during assembly.

1. Step 1: Preheat the oven to 200°F (100°C). In a clean, dry bowl using a stand mixer or hand mixer, whip the room-temperature egg whites with the cream of tartar and a pinch of salt until foamy. Slowly add the sugar while mixing and continue to beat on high until you reach glossy, stiff peaks.

2. Step 2: If you want red toadstools, gently transfer about half the meringue to a separate bowl or piping bag and fold in red gel food coloring until evenly colored. Keep the other half white for stems (and for classic white mushrooms if preferred).

3. Step 3: Line a baking sheet with parchment paper. Fit a piping bag with a large round tip and pipe out mushroom caps and separate stems. For caps that end up peaked, dampen a fingertip and gently smooth the peak so the cap is flatter.

4. Step 4: For red toadstools, pipe red caps and white stems separately. If you want white spots on red caps, switch to a very small round tip (or use a toothpick) and add tiny white dots of meringue. Bake at 200°F (100°C) for about 1.5–2 hours, until fully dry. Do not open the oven while baking; they should peel off the parchment easily when done.

Allow the meringues to cool completely. Melt a small amount of chocolate in short bursts in the microwave or in a double boiler, stirring until smooth. Use a sharp knife to carve a shallow hole in the center of the bottom of each cap — be gentle so you don’t cut through.

Use the melted chocolate as adhesive: either spoon a small dab onto the bottom of the cap and insert the stem, or dip the tip of the stem into chocolate and press it into the cap. Place assembled mushrooms upside down while the chocolate sets, then return them upright and, if desired, dust with cocoa powder for a traditional look.

My Mushroom Tips! 🍄

• Clean Bowl: Ensure the mixing bowl and whisk are completely clean and free of grease. Any fat will prevent the whites from whipping properly.
• Steady Hands for Toadstools: Piping tiny white spots on red caps takes patience. Use the smallest round tip or a toothpick and dispense the tiniest amount of meringue for each spot.
• Handle Gently: Meringue mushrooms are delicate. Move and assemble them with care to avoid cracking.

Storage

Store finished meringue mushrooms in an airtight container at room temperature. They keep well for 2–3 days in dry conditions. If you live in a humid climate, it’s best to make and use them on the same day to avoid them becoming sticky.

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Made This Recipe?

Please leave a rating and review if you try these meringue mushrooms — I love seeing variations and creative decorations.

Thank you!

Ella

Make charming meringue mushrooms for your yule log. Easy instructions for classic white mushrooms and red toadstools.