Bloom the gelatin. In a medium bowl, whisk the gelatin powder with 6 tablespoons (82 grams) warm water until frothy and no clumps remain, about 2 minutes. Add the vinegar, oil, and 1 ½ cups (355 grams) warm water and whisk again just to combine. Set aside.
Mix dry ingredients and set aside. In a bowl, combine the Cassava flour, tigernut flour, baking soda, salt, and yeast. Whisk and set aside.
Preheat the oven to 375F. Line a baking sheet with parchment paper and sprinkle with cassava flour. Rub 8 English muffin rings* with oil then dust with cassava flour. Place on the prepared baking sheet.
Combine the wet and dry mixtures. Use a stand mixer with beater or simply whisk by hand to form a fluffy, sticky batter, about 4 minutes. Note: It's important to mix really well to achieve the most beadlike consistency in gluten-free baking.
Spoon the batter into the prepared rings. Cover with a piece of oiled plastic wrap and allow to rise for 30 to 45 minutes or until you see the batter has reached the top of the rings.
Bake for 25 to 30 minutes or until the internal temperature is 190-200℉.
Cool slightly before unmolding. Let the muffins cool completely before using. These are best served sliced and toasted and will freeze well. For the proper “English muffin” texture, you stab a fork in the outside and pry (working around the outer circumference)-- prying open the English muffin will give it the signature look.