Sprinkle the gelatin over the filtered water in a small stainless-steel saucepan. Stir and let it soften for 1 minute.
Heat over medium, stirring until the gelatin dissolves, about 2 to 3 minutes. Turn off the heat before it simmers.
Stir in the raw honey, cinnamon, and salt. Cool the mixture completely to room temperature, about 15 minutes.
Beat the slightly soft lard in a stainless-steel bowl until creamy, about 40 seconds to 1 minute. Add the cooled honey-gelatin water about 2 tablespoons at a time, beating about 20 seconds after each addition, until smooth.
For plain frosting, spread over a fully cooled cake at room temperature. For pink decoration, first measure 3/4 cup finished frosting into a small glass or stainless-steel bowl.
Beat pure beet powder into the measured 3/4-cup portion: 1/2 teaspoon for light pink, 1 teaspoon for medium pink, or 2 teaspoons for dark pink.
Spread or pipe the pink portion thinly at room temperature. Darker color brings stronger beet flavor.