To make the creamy filling, blend the silken tofu, cream cheese, sugar, melted butter, ground freeze dried strawberries, and food coloring (if using) until smooth and creamy (about 1 minute). Pour the filling evenly into 6 3-inch ramekins. Cover the ramekins and place them in the refrigerator for at least 3 hours until the creme sets.
Make the Glass Topping.
After your creme has set, add 1 tablespoon of caster sugar over the top of each ramekin. If you want to ensure that the sugar is evenly distributed, you can use a pastry brush, but I just used the back of my spoon and it worked fine. There should be enough sugar that it doesn't readily dissolve into the creme. This is what will make a nice, hard "crack" when the sugar melts and hardens. Ignite your blow torch and then bring it close to the sugar (about 1-inch away) and using a smooth, small, circular motion with your hand, move the flame over the sugar until it bubbles and turns into an amberish gold color.
Notes
When torching the sugar, do not stay too long in one spot, as this will burn the sugar and turn it bitter.
If your sugar doesn't get hard, it's likely because you didn't add enough sugar to the top of your creme and it dissolved into your creme. Wait for your sugar to cool and add more and retorch.