Basic recipe from Chocolates and Confections, Peter Greweling Flavor combo by The Spiced Life
Ingredients
1 lb of lemon juice and strawberry puree--see directions for how to measure
zest of 1 large lemon
24 oz (3 cups) granulated sugar
6 oz (2 3-oz envelopes) liquid fruit pectin
juice of half a lemon (if experimenting with other fruit purees, be sure to use 1 tablesp0on minimum with any fruit puree as the acid is necessary)
additional sugar for coating
Instructions
Spray a 9X9 baking pan with oil and then line it with plastic wrap. Lightly oil it again. Bunch the plastic at the tops of the pan so that the plastic wrap will not stretch and rip from the weight of the jellies (wish I had taken a picture of this--sorry!). Smooth the bottom so that there are as few air pockets as possible. Set aside.
Set up a food processor or blender and place it on a scale. Grate the zest of one lemon into it. Squeeze the juice of 1½ large and juicy lemons into it (use more lemons if your lemons are dry or small--this is basically to taste, i.e., how much lemon do you want in your strawberry?). Then add strawberries to reach one pound (16 oz); I recommend using frozen if you are off season. Puree until smooth.
Open the pectin packets and place them next to the stove (I use a deep but narrow bowl to prevent them from spilling).
Combine the puree and 3 cups of sugar in a 4 qt heavy saucepan (Greweling says you can use 2 qt but mine boiled over). Attach a thermometer and stir over medium high heat. Keep stirring until the fruit sugar mix reaches 238 F. Be sure to stir constantly to prevent the fruit from scorching on the bottom of the pan; it is best to use a silicone spatula to continually scrape at the bottom of the pan.
When the puree reaches 238 F, add the pectin and return to a boil, still stirring. Stir at a boil for 1 minute.
After the minute is up, turn off the heat and add the juice from the remaining half lemon (at least 1 tablespoon). Pour and scrape the puree into the prepared pan. Sprinkle a thin layer of sugar onto the jelly while it is still hot. Set aside to cool completely.
When the jelly is cool, invert it onto a wooden cutting board and then remove the plastic wrap. Use an oiled chef's knife to slice the jelly into squares (or whatever shape you want) and then roll the individual pieces in more sugar. Store in a sealed container.
Recipe by The Spiced Life at https://www.thespicedlife.com/strawberry-lemon-pate-de-fruit/