Prepare the Pan: Line an 8-inch or 9-inch square pan with parchment paper, ensuring the paper overhangs the edges for easy removal later.

Blend the Ingredients: In a blender, combine chopped strawberries and unsweetened applesauce and blend until smooth.

Combine with Gelatin: Transfer mixture to a heatproof bowl, sprinkle gelatin, and stir until mixed. Let sit for about 5 minutes.

Dissolve the Gelatin: Use a double boiler to warm the gelatin mixture until it becomes liquid, about 5 minutes.

Cool the Mixture: Remove from heat and let cool for about 10 minutes.

Whip the Mixture: Transfer to a stand mixer and beat on high for 15 minutes until fluffy.

Pour into the Pan: Gently pour the fluffy mixture into the prepared pan and smooth out the surface.

Chill to Set: Cover with plastic wrap and refrigerate for at least 1 hour.

Serve and Enjoy: Remove from the pan, slice, and optionally serve with whipped cream or additional strawberries.