Sometimes French Vanilla strikes whiter than you might be visualizing, or it might turn out to be exactly what you wanted.
Here is an idea that popped into my head, so it is not proven, yet. Go ahead with your plan, and also make a test tile to go alongside your bigger piece, made with the same combination of glasses. After firing, consider your results. If the vanilla streaks are not amber enough after firing, here is my suggestion for Plan B: take your test tile and sift an even layer of 1137 Amber Powder over the top of the whole tile and refire it. (Maybe 2mm deep--enough to really cover the tile.) I am guessing this would add warm tones to the French Vanilla (if needed), and that the dark red would either look the same or even closer to a brick red. If that works on the test tile, you can use the same method on your real piece.
Mary Kay Nitchie
Bullseye Glass Co.
Subscribe to Bullseye kiln-glass videos at