1. Prepare Your Workspace and Oven: Begin by preheating your oven to 375 F (190 C). Line a baking sheet with parchment paper to prevent sticking and make cleanup a breeze. This initial step ensures your oven is at the correct temperature when your dough is ready.

2. Create the Cream Cheese Filling: In a small bowl, combine the softened cream cheese, granulated sugar, and vanilla extract. Use a fork or a small whisk to mix until the mixture is smooth and creamy, with no lumps. The visual cue here is a uniform, spreadable consistency.

3. Unroll the Crescent Dough: Carefully unroll the can of crescent rolls onto your prepared baking sheet. If using traditional crescent rolls, separate them into individual triangles. If using seamless dough sheets, you can cut them into squares or rectangles. The dough should be laid out flat, ready for filling.

4. Fill and Fold the Dough: Spoon a small amount of the cream cheese mixture onto the wide end of each crescent roll triangle or into the center of your dough squares. If using berries, sprinkle a few over the cream cheese filling. Gently roll up the crescent dough from the wide end towards the point, or fold the dough over the filling to create a parcel. The filling should be mostly enclosed, but it’s okay if some peeks out.

5. Arrange and Bake: Arrange the filled crescent rolls on the baking sheet, ensuring they have a little space between them for even baking. Place the baking sheet in the preheated oven and bake for 12-15 minutes.

6. Check for Golden Brown Perfection: Keep an eye on the crescent rolls as they bake. They are done when they are puffed up and beautifully golden brown on top. This golden color is your key visual cue for doneness.

7. Cool Slightly and Dust: Once baked, remove the baking sheet from the oven and let the pastries cool on the sheet for a few minutes before transferring them to a wire rack. While still warm, dust generously with powdered sugar using a small sieve or shaker.