You've got a few problems, not the least of which is that your datastructure isn't a nested hash of hashes. It's a hash of lists of hashes, or something wierd like that. Use Data::Dumper to view the datastructure first to see how it doesn't match what you're trying to print.

You should also construct your map statement like this:

Note the $ref->{$_} construct. You have to dereference the hashref $ref.

Here's code that works. It's sloppy because you're still not using strict, not using warnings, formatting is all over the place, etc. But it does what you're after:

my %Recipes = (
"YumYumStuff" => {
    ingredients => {
        1 => "1 Pate a Bombe",
        2 => "1/2 French Meringue",
        3 => "300ml double cream",
        4 => "3 very ripe bananas",
        5 => "2 tablespoons Creme de Banane",
        6 => "1 Bitter Chocolate Sorbet",
    },
    instructions => { 
        1 => "Whisk together the pate a bombe and the French Meringue 
+mixtures.  They should be roughly equal in amounts by volume.",
        2 => "Lightly whip the cream to the same consistency as the pa
+te de bombe and French Meringue mixture then mix both mixtures togeth
+er",
        3 => "Finally, whisk in the banana puree and liquer.  Pour or 
+pipe into ramekins, a long loaf tin or a large freezer container. ",
        4 => "About 30 mins before serving, transfer the parfait from 
+the freezer to the refrigerator",
    }
} );
                    

for $recipe (keys %Recipes) {
    print "For $recipe the ingredients are :\n";
            $ref = $Recipes{$recipe}{ingredients};
            print map "$_ = $ref->{$_}\n",  sort keys %{$ref};
        }
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thanks, see that you've removed the array brackets and it works. Did try to dereference, amongst a number of things :) and nothing would work.

use YAML;

my %Recipes = (
    YumYumStuff => {
        ingredients => [
            {
                1 => "1 Pate a Bombe",
                2 => "1/2 French Meringue",
                3 => "300ml double cream",
                4 => "3 very ripe bananas",
                5 => "2 tablespoons Creme de Banane",
                6 => "1 Bitter Chocolate Sorbet",
            },
        ],
        instructions => [
            {   1 => "Whisk together the pate a bombe and the French "
+        .
                     "Meringue mixtures.  They should be roughly equal
+ in "   .
                     "amounts by volume.",
                2 => "Lightly whip the cream to the same consistency a
+s the " .
                     "pate de bombe and French Meringue mixture then m
+ix "    .
                     "bothmixtures together",
                3 => "Finally, whisk in the banana puree and liquer.  
+Pour "  .
                     "or pipe into ramekins, a long loaf tin or a larg
+e "     .
                     "freezer container. ",
                4 => "About 30 mins before serving, transfer the parfa
+it "    .
                     "from the freezer to the refrigerator",
            },
        ],
    },
);

print Dump \%Recipes;
__END__
--- #YAML:1.0
YumYumStuff:
  ingredients:
    - 1: 1 Pate a Bombe
      2: 1/2 French Meringue
      3: 300ml double cream
      4: 3 very ripe bananas
      5: 2 tablespoons Creme de Banane
      6: 1 Bitter Chocolate Sorbet
  instructions:
    - 1: ! >-
        Whisk together the pate a bombe and the French Meringue mixtur
+es.  They
        should be roughly equal in amounts by volume.
      2: ! >-
        Lightly whip the cream to the same consistency as the pate de 
+bombe and
        French Meringue mixture then mix bothmixtures together
      3: >-
        Finally, whisk in the banana puree and liquer.  Pour or pipe i
+nto ramekins,
        a long loaf tin or a large freezer container. 
      4: ! >-
        About 30 mins before serving, transfer the parfait from the fr
+eezer to the
        refrigerator
[download]

thanks, will give that a go

my %Recipes = (
"YumYumStuff" => {
         ingredients => [
            "1 Pate a Bombe",
            "1/2 French Meringue",
            "300ml double cream",
            "3 very ripe bananas",
            "2 tablespoons Creme de Banane",
            "1 Bitter Chocolate Sorbet",
         ], 
         instructions => [
         "Whisk together the pate a bombe and the French Meringue mixt
+ures.  They should be roughly equal in amounts by volume.",
         "Lightly whip the cream to the same consistency as the pate d
+e bombe and French Meringue mixture then mix both mixtures together",
         "Finally, whisk in the banana puree and liquer.  Pour or pipe
+ into ramekins, a long loaf tin or a large freezer container. ",
         "About 30 mins before serving, transfer the parfait from the 
+freezer to the refrigerator",
     ],
     }
);
                    
                                    
for $recipe (keys %Recipes) {
    print "For $recipe the ingredients are :\n";
            $ref = $Recipes{$recipe}{ingredients};
            my $i;
            print map ++$i." = $_\n",  @$ref;
}
[download]

I agree - arrays seem to be a good choice here. Using arrays would also make inserting or deleting an ingredient or instruction step very easy (simply push/splice/slice as necessary). Hashes would make those modifications more difficult, since you'd have to renumber the keys after every change.

Without the numbers, just showing the quantities incolumned.

1        Pate a Bombe 
1/2      French Meringue 
300ml    double cream 
3        very ripe bananas 
2        tablespoons Creme de Banane 
1        Bitter Chocolate Sorbet
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print "$1 \t $2" if (/^([^ ]+)\s*(.*)/); ##separates by 1st. blank
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