Preheat oven to 425°F. In a 10-inch oven-safe skillet, combine the strawberries, honey, brown sugar, arrowroot powder/cornstarch, thyme (if using), and 1 tablespoon of water. Set over medium-high heat. Bring to boil and cook 10 minutes, until the berries start to release their juices. Remove from the heat, add the vanilla. On a lightly floured surface, roll the puff pastry out into a rectangle about 1/4 inch thick. Place the pastry over the strawberries and press down gently, tucking the sides of the pastry under the strawberries. If desired, brush the pastry with a beaten egg and sprinkle with coarse sugar. Place the skillet on a baking sheet. Bake 25-30 minutes, cover with foil for the last 5-10 minutes. I like a darker pastry! Let cool in the skillet for 15 minutes. Run a knife around the edge to loosen. Carefully invert the Tarte Tatin onto a serving plate. If any strawberries fall out of place, just tuck them back in. Serve warm, topped with ice cream. Enjoy!: You should notice the oven reaching a steady, high heat so the pastry will puff immediately when it hits the oven. The dry, hot environment helps the bottom of the pastry crisp while the fruit syrup bubbles, creating a pleasing contrast. A common mistake is not preheating long enough, which leads to soggy pastry. Make sure the oven indicator has reached temperature before baking.
In a 10-inch oven-safe skillet, combine the strawberries, honey, brown sugar, arrowroot powder/cornstarch, thyme (if using), and 1 tablespoon of water.: As the fruit mixes with the sugars and starch, you will see juices start to bead on the strawberries. The starch helps bind those juices so the topping becomes glossy instead of watery. Stir gently to coat the strawberries , and avoid smashing them, which would make the mixture too pulpy.
Set over medium-high heat.: Place the skillet on the stove so the mixture can warm up steadily. You will hear a gentle simmer building to a soft bubbling as sugar melts and fruit releases moisture. Too high a flame can scorch the sugars, while too low will not reduce the juices properly, so moderate heat is key.
Bring to boil and cook 10 minutes, until the berries start to release their juices.: Expect a fragrant steam of warm strawberries and honey, and you will see berries shedding liquid that mingles with melted sugar. The surface should look syrupy. If the mixture seems too thin after 10 minutes, continue a bit longer, stirring occasionally, until it thickens slightly.
Remove from the heat, add the vanilla.: Off the heat, pour in the vanilla extract so the aroma remains delicate rather than being driven off by boiling. The room will fill with a warm, sweet scent. Adding vanilla at this point preserves its fragrance. Avoid adding it too early or it will lose its bright notes.
On a lightly floured surface, roll the puff pastry out into a rectangle about 1/4 inch thick.: When you roll the puff pastry , you should feel slight resistance and see distinct layers form as the dough becomes even. Keep the pastry chilled during handling to maintain layers, and use a light dusting of flour to prevent sticking. Overworking the dough will compress layers and reduce flakiness.
Place the pastry over the strawberries and press down gently, tucking the sides of the pastry under the strawberries.: As the pastry meets the warm fruit, you will hear a soft hiss and see steam escape at the edges. Tucking the edges secures the filling and creates a neat rim when inverted. Be careful pressing too firmly, which can force out too much syrup; gently coax the dough into place instead.
If desired, brush the pastry with a beaten egg and sprinkle with coarse sugar.: Brushing with the beaten egg gives a glossy, deep golden finish, and the coarse sugar will caramelize slightly on top for added texture. You will notice the pastry gleaming before it even goes into the oven. Skip this step if you prefer a paler crust, but know that you will lose a bit of the showy sheen.
Place the skillet on a baking sheet.: Setting the skillet on a baking sheet catches any bubbling syrup that might escape, preventing oven drips and making clean up easier. You may hear a soft crackle as residual juices hit the hot metal, which is normal. Avoid putting the skillet directly on racks without a tray, which risks overflow onto the oven floor.
Bake 25-30 minutes, cover with foil for the last 5-10 minutes.: In the oven the pastry should rise and turn golden, and the sugar will deepen to an amber color while the filling bubbles gently. Covering with foil toward the end prevents the pastry from overbrowning while ensuring the interior finishes. A common error is leaving it uncovered the whole time and ending with overly dark pastry; timing your foil cover keeps the color controlled.
Let cool in the skillet for 15 minutes.: Cooling allows the hot syrup to settle and slightly thicken, which helps the tart hold its shape when inverted. You will feel the skillet grow cooler and notice the bubbling slow. Inverting too soon often leads to a runny topping, so patience at this stage pays off.
Run a knife around the edge to loosen.: As you slide a knife between the pastry and skillet, you should feel the tart release from the metal. This step ensures a clean flip. If the edges cling, gently work the knife further under the pastry but avoid tearing the crust, which makes an irregular presentation.
Carefully invert the Tarte Tatin onto a serving plate.: With a confident motion, cover the skillet with a plate and flip; you may hear a soft thud and see the glossy strawberry crown emerge. Steam and syrup can run, so use oven mitts and a stable surface. If pieces shift, tuck them back into place quickly. Hesitation midflip can cause hot syrup to spill, so commit and turn decisively.
If any strawberries fall out of place, just tuck them back in.: After inversion, you might find a berry misaligned, and gently arranging them improves the look. The syrup will still be warm and malleable, so you can nudge berries into a pleasing pattern. Be mindful of hot spots and use a spoon to reposition, avoiding burns.
Serve warm, topped with ice cream.: The final touch is a scoop of vanilla ice cream , which melts into the warm syrup, creating a creamy counterpoint. Listen for the soft sizzle as cold meets hot, and enjoy the contrast of textures. Serving it cold is an option, but the warmth elevates the caramel notes best.