Add French Rhubarb Pie recipe

This was included as a letter in a 2015 CSA box from the family growing
my vegetables for the summer.

Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>

recipe.cls

@@ -25,6 +25,7 @@
 \newcommand{\recipeMakes}[2]       {\def\recipe@serves{Makes: \textbf{#1} #2}}
 \newcommand{\recipeSource}[1]      {\def\recipe@source{\footnote{#1}}}
 \newcommand{\recipeSourceBook}[2]  {\recipeSource{{\em #1}.  Page: #2.}}
+\newcommand{\recipeSourcePerson}[2]{\recipeSource{{\em #1}.  From: #2.}}
 \newcommand{\recipeSourceWeb}[2]   {\recipeSource{{\em #1}.  Source: #2.}}
 
 % Preformatted fractions

snacks/french_rhubarb_pie.tex

@@ -0,0 +1,35 @@
+%
+% Copyright 2016 (c) Anna Schumaker.
+%
+\documentclass{../recipe}
+
+\recipeName{French Rhubarb Pie}
+\recipeSourcePerson{French Rhubarb Pie}{The Daniel Miller Family}
+
+\begin{document}
+\begin{ingredients}
+\addIngredient{2 tablespoons and \threequarters cup}{flour, divided}
+\addIngredient{1 cup}{sugar}
+\addIngredient{\half cup}{water}
+\addIngredient{2 cups}{rhubarb, diced}
+\addIngredient{1}{egg}
+\addIngredient{\quarter teaspoon}{salt}
+\addIngredient{1}{pie shell, unbaked}
+\addIngredient{\half cup}{brown sugar}
+\addIngredient{\third cup}{butter, melted}
+\end{ingredients}
+
+\begin{steps}
+\addStep{Preheat oven to \textbf{\ftemp{400}}.}
+\addStep{Mix together \textbf{2 tablespoons} \ingredient{flour},
+	 \ingredient{sugar}, \ingredient{water}, \ingredient{rhubarb},
+	 \ingredient{egg}, and \ingredient{salt} in a large mixing bowl.
+	 Transfer to \ingredient{pie shell}.}
+\addStep{Mix together \textbf{remaining} \ingredient{flour},
+	 \ingredient{brown sugar}, and \ingredient{butter}.  Spread over
+	 \ingredient{rhubarb mixture}.}
+\addStep{Bake at \textbf{\ftemp{400}} for \textbf{10 minutes}.
+	 Reduce heat to \textbf{\ftemp{350}} and continue baking
+	 for \textbf{30 minutes}.  Let cool before serving.}
+\end{steps}
+\end{document}