Place cherries into a large saucepan. Add 1/2 cup honey, lemon juice, cornstarch, and almond extract (if using), then stir to coat. Turn on the heat to medium.
Cook the filling, stirring often, until glossy and thickened, about 5 - 10 minutes. Very carefully so as not to burn your tongue, taste the mixture. If you desire additional sweetness, add more honey a few teaspoons at a time. Remove pan from the heat and let the filling cool completely. Transfer to a storage jar.
Notes
TO STORE. This cherry pie filling will keep in the refrigerator for up to one week.
TO FREEZE. Because it is made with honey, it does congeal somewhat when frozen and thawed. I found it worked best to let the frozen filling thaw overnight in the refrigerator, then warm it in the microwave, stirring every 30 seconds, to smooth it out a little.