Preheat the oven to 350 degrees F.: The warm, dry air from a properly heated oven is what encourages the topping to brown while the filling bubbles, so preheating matters. You should feel the kitchen slowly warm and notice a faint dry heat after a few minutes. If you skip preheating, the topping can absorb more moisture before it sets, leading to a denser crust. A common mistake is assuming an oven reaches temperature instantly, so wait until your oven indicates it is ready.
Add all ingredients for the topping to a mixing bowl and stir to combine. A thick, greasy dough should form. The greasiness is normal!: When you stir the gluten free all purpose flour , sea salt , baking soda , melted coconut oil , pure maple syrup , and pure vanilla extract you will feel a sticky, slightly oily dough come together. The texture should be cohesive but not dry, and the smell of vanilla and maple will be noticeable. This greasiness helps create a tender, flaky top as it bakes, and it is normal not to see a dry, crumbly biscuit dough. Avoid overmixing which can make the topping tough, and if the dough seems too loose, a quick chill will firm it up for easier handling.
Toss the ingredients for the strawberry filling in a mixing bowl and stir until well-combined (make sure the flour has dissolved).: As you combine the strawberries , the 2 tablespoons of gluten free all purpose flour , the 1/4 cup of pure maple syrup , and a pinch of sea salt , you will notice the berries start to glisten as they become evenly coated. The flour should look evenly distributed and not form dry clumps, which ensures it will thicken the juices as the fruit bakes. You can smell the bright berry scent become sweeter as the syrup disperses. A typical pitfall is failing to toss thoroughly which leaves flour pockets that will gasp and bake oddly, so make sure everything is well integrated.
Transfer the strawberry filling mixture to an oven-safe dish (I use a 10-inch cast iron skillet. You can also use an 8” x 8” or 9” x 9” baking pan).: The filling should sit in a shallow, even layer so the fruit cooks consistently and the juices bubble up around the edges. Using a cast iron skillet promotes even heat and a slightly caramelized edge, while a square pan offers a more uniform shape. You will see the berries release a little liquid when they settle into the dish and the aroma will become fruitier. Avoid deep vessels that inhibit bubbling, or the center may remain undercooked.
Top the strawberry filling using the cobbler dough. You can form biscuit shapes if you’d like, or simply spread the topping all over.: Placing the greasy, tender dough atop the filling in dabs or as a spread changes the finished texture, so choose based on preference. Dollops will create distinct pockets of biscuit, while spreading yields a more continuous crust with crisp edges. Press gently if you spread, and leave small gaps for steam to escape which helps the filling bubble. A common error is flattening the topping too thin which causes it to crisp overly fast and dry out before the inside is done.
Bake in the preheated oven 30 to 40 minutes, until the topping is golden-brown and crispy.: During baking you will notice steam escaping and the topping turning from pale to golden. The scent of baked strawberries and maple will grow stronger, and you may hear the faint bubbling of juices. The topping should be crisp to the touch and a deep golden brown at the peaks when ready. If the center looks unset, tent with foil and give it additional minutes rather than increasing oven temperature, which can burn the top. A typical misstep is removing it too soon, leaving the filling gooey rather than beautifully syrupy.
Serve fresh out of the oven with your choice of dairy-free ice cream or coconut whipped cream and enjoy!: Fresh from the oven, the cobbler will steam and smell wonderfully fruity; spoon portions while warm so you get the contrast of hot filling and cool topping from a dairy free scoop. The texture is at its peak in the first hour when the crust retains some crispness while the filling is glossy and slightly syrupy. If you wait too long to serve, the topping will soften as it absorbs juices, so plan to enjoy it soon after baking. A common slip is serving it stone cold which flattens the lively contrasts that make it so comforting.