Preheat oven to 375°F .
Lightly oil and line the bottom of a jelly roll pan with parchment paper (10”x15”pan).
Whisk together gfJules Flour, salt, psyllium, leaveners, and spices in a bowl and set aside.
Place eggs and sugar in mixer bowl and combine with whisk attachment. Gradually increase speed to high and allow to whisk for about 3-5 minutes until very thick and pale.
Once eggs are very thick and pale, add pumpkin purée, whisking until combined.
Add half of the flour mixture and fold in with a spatula until mostly combined. Add remaining flour mixture and continue folding until mixture is smooth.
Immediately pour batter into the prepared pan and place in the preheated oven for about 25 minutes, or until a toothpick inserted into the center of the cake comes out clean (not wet) and the cake springs back to a light touch. Be careful not to over-bake the cake as that will make it more difficult to roll.
While the cake is baking, place a clean, lint free towel on your work surface and dust with confectioner's (powdered) sugar.
When the cake is done baking, remove from the oven and immediately invert onto the prepared towel. To roll, grab the narrow end of the cake and roll it up all the way together with the towel. It is important to do this while the cake is still hot. The spiral does not need to be overly tight.
Set the cake aside and allow it to cool to room temperature while rolled up with a towel, about 2 hours.
The cake should ideally not sit too long before unrolling to frost, as it will become more firm and more likely to crack when unrolled.
Once the cake has cooled, slowly and gently unroll and carefully spread frosting all along the inside of the cake as pictured above. Roll the cake up once again, but this time without the towel.
Place on a serving dish and dust the top lightly with powdered sugar. Keep cake in the refrigerator if not served immediately.