Write the next sentence in this paragraph:

How to make russian tea cakes
Place the butter in a bowl along with the confectioner's sugar.
Mix the two ingredients in a mixing bowl using either a handheld mixer or a stand mixer with a paddle attachment.
The finished mixture should look creamy with a light yellow color.

Options are: + Add the chopped strawberries and green apples. Stir them into the mixture with a wooden spoon.; + Add the vanilla and beat the butter mixture for an additional 30 seconds. Place the flour and kosher salt into another clean mixing bowl.; + Add the gelatin to the mixture then slowly put in the remaining water in the mixing bowl. You can add more or less water depending on how warm you like your tea.; + Set the mixer on low and beat the ingredients. Keep beating until the mixture reaches a light yellow color.;
Add the vanilla and beat the butter mixture for an additional 30 seconds. Place the flour and kosher salt into another clean mixing bowl.