Q. Are there conversion charts for substituting honey instead of sugar, and Splenda and Truvia vs. sugar? Do these exist somewhere?
A. Here's the basic rule of thumb for subbing honey instead of sugar:
1 cup honey = 1 cup sugar but decrease the liquid in the recipe by 1/4 cup for each cup of honey added.
Lower the oven temperature 25 degrees when baking foods in which honey has been substituted for sugar.
You can check these websites for more on the honey vs. sugar discussion.
Here's the official conversion chart for substituting Splenda for sugar from the makers of Splenda.
And here's the chart for using truvia vs. sugar
Hope this helps. Let us know how things turn out.