Cake

1. Grease a jelly roll pan or cookie sheet that has sides with butter. Add flour and coat the butter, then shake off the extra flour over the sink. This lets the cake release from the pan.
2. Sift together the flour, cocoa, baking powder, and salt.
3. In a larger separate bowl, beat the eggs until thick and creamy. Beat in the granulated sugar 1 tablespoon at a time until thick. Stir in the water and vanilla. Fold in the flour mixture.
4. Spread the batter evenly in the prepared pan.
5. Bake at 375°F for 12 to 15 minutes. Test with a toothpick.
6. While the cake bakes, lay a clean, thin kitchen dish towel on the counter and sift powdered sugar over the whole towel.
7. When you take the cake out of the oven, run a knife along the edges.
8. Invert the cake in the pan onto the towel. Start at the longest end and roll the cake up in the towel.
9. Place the rolled cake in the towel on a cooling rack and cool completely.

Whipped Cream

1. In your electric mixer bowl, put the whipping cream and the whisk attachment.
2. Start slowly on low, add the vanilla and the powdered sugar, and beat until soft peaks form. Do not over beat or you will make sweet butter.
3. Put in the refrigerator.

Butter Cream Frosting

1. Put water in a saucepan on the stove top on low heat.
2. Set a heatproof glass or metal bowl on top of the saucepan to make a double boiler.
3. Put the butter and the unsweetened chocolate in the bowl to melt. Cool slightly.
4. In your mixer bowl, add 2 cups of powdered sugar, the milk, and the vanilla.
5. Put the mixer on low and slowly add the chocolate mixture.
6. Mix until the frosting is smooth and easy to spread but not runny.
7. You may need to add more milk or sugar depending on your location and ingredients.

Make the Cake

1. Have the whipped cream and the frosting ready. Have a helper ready.
2. On a large tray or cutting board, slowly unroll the cake and take the towel away.
3. Fill the inside of the cake with the whipped cream and roll it back up.
4. Place the filled cake on your serving tray.
5. Cut off an end of the cake, shape it into a tight knot, and place it on top of the cake.
6. Spread the frosting over the entire cake, including the knot and the ends.
7. Take a fork and drag it across the frosting to make the cake look like bark.
8. Add any decorations to make the cake look like a log in the forest.
9. Sift powdered sugar over the entire cake and the serving tray so it looks like snow.